<!DOCTYPE html>
<html>
<head>
	<meta charset="utf-8">
	<title></title>
	<link rel="stylesheet" type="text/css" href="css/css_class.css">
</head>
<body>
	<!-- 绿色 20px -->
	<p class="lv big">mjj</p>
	<!-- 绿色 粗 -->
	<p class="lv bold">mjj</p>
	<!-- 粗 20px -->
	<p class="bold big">mjj</p>


	<div class="ll">
		<p >你好
			<a href="#">djy</a></p>
		<a href="#">hello</a>
	</div>

	<br>

	<div class="ls"><a href="#">你好</a></div>


	<h1>nihap</h1>
	<h2>buhao</h2>

	<div class="acc">
	<a href="#">xiao dong xi</a></div>
</body>
</html>